YearPToutPBase 100
201196.68%100
201297.19%100.3
201395.24%100.6
201496.09%100.9
201595.37%101.2
201683.09%101.6
201798.6%101.9
2018100%102.2
201998.33%102.5
202099.09%102.8
Evolution : 2 % entre 2011 et 2020 soit 0.28 % de gain par an.